Rearranging atoms refers to the process in which atoms in a substance change their positions or bonds to form new substances or structures. This can happen during chemical reactions physical changes, or nuclear processes

Chemical reactions: Atoms break existing bonds and form new ones, creating different molecules.

Example: Hydrogen and oxygen atoms rearrange to form water (H₂O).

Physical changes Atoms may rearrange without changing the substance’s chemical identity, such as when ice melts into water.

Nuclear reactions Atoms themselves are changed (like in fusion or fission), leading to different elements, not just different molecules.

So, rearranging atoms is how matter transforms from one form to another in both everyday and scientific phenomena.